火炸药学报2017，Vol.40Issue(3)：93-97,5.DOI:10.14077/j.issn.1007-7812.2017.03.018
金属柱壳约束对非理想炸药驱动效率的影响
Influence of Cylindrical Metal Shell Constraint on the Driving Efficiency of Non-ideal Explosives
摘要
Abstract
The function relationships between the pressure of detonation products with the radial expansion displacement of shell and the dynamic yield strength were established by analyzing dynamic response of cylindrical metal shell with sliding detonation of internal explosive.The pressure threshold of the detonation products as the shell completely ruptured was obtained according to Taylor assumption.The applicability of the model was verified by two RDX-based aluminized explosives with similar Gurney coefficient values as example.The results show that under the same shell, the utiliation of driving energy for RDX-based aluminized explosive with nitrate ester has obvious advantages compared with RDX-based aluminized explosive without nitrate ester.When the dynamic yield strength of the shell material increases from 0.2GPa to 0.8GPa, the relative increment of effective work energy goes up rapidly from 7.5% to 15.2%, which is consistent with the trend of the actual application of the warhead, showing that the model can be used to comprehensive assessment of the driving work performance of non-ideal explosives.关键词
爆炸力学/非理想炸药/金属柱壳/破裂/含铝炸药/驱动效率Key words
explosion mechanics/non-ideal explosive/cylindrical metal shell/rupture/aluminized explosive/driving efficiency分类
军事科技引用本文复制引用
王辉,沈飞..金属柱壳约束对非理想炸药驱动效率的影响[J].火炸药学报,2017,40(3):93-97,5.基金项目
国防重大基础科研专项 （）
